The European Coal and Steel Community has been called a new structure in the marches between internal and international law. 1 To describe this new type of structure the term supra national has found increasing usage. Supranational organs have been defined as standing midway between 'international' and federal organs. International organizations - such as the United Nations or the Council of Europe - are based on the sovereign equality of their members and non-intervention in domestic affairs; they are really at the intergovernmental level. Supra national organs transcend international organizations in both these respects without, however, constituting a federal state. They are based not on a mere restriction, but on a transfer of [national] sovereignty, but a transfer of sovereignty in a particu lar area only. 2 This pilot experiment in supranational organization is of twofold importance. In the first place, although operating on a regional level only, it could teach valuable lessons concerning future attempts at world organization through the functional approach. In Prof. Mitrany's words, national divisions must be overlaid with a spreading web of international activities and agencies, in which and through which the interests and life of all the nations would be gradually integrated. 3 The Coal and Steel Community could be an excellent testing ground for the develop ment of an international community, growing from the satis faction of common needs which people of different nations share.